My New Favorite Thing Saves Your Wall!

I am not very handy so when my wife wants a shelf hung on the wall, I grab the ol' stud finder and still manage to drill three times before I hit a stud! Infuriating! But technology has improved everything these days, including stud finders. This one is my new favorite thing. I found it on Amazon and did a lot of research before I bought it. This video sold me: